000
AXPZ20 KNHC 270830
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Fri Dec 27 2019

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through 
0830 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from 09N84W to 06N91W to 08N105W to 
08N112W. The ITCZ continues from 08N112W to 09N120W to beyond 
07N140W. Scattered moderate convection is within 60 nm south of 
the axis between 89W and 96W, as well as between 114W and 124W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A cold front extends from southern Arizona across NW Mexico and 
the central Baja peninsula to 24N119W. The front will reach from 
Cabo San Lazaro to 22N120W later today then weaken and dissipate 
near Cabo San Lucas early Sat. Strong W to NW winds are evident 
from scatterometer data NW of the front. Winds associated with 
the front will diminish today, and large NW swell will continue 
to propagate southeastward in the offshore waters of central and 
southern Mexico through Sun, with sea heights slowly subsiding.  

Fresh NW winds are expected in the northern Gulf of California 
this morning as some reinforcing cold air moves across the 
northern part of the peninsula. Otherwise, moderate to fresh NW 
to N winds are expected off the west coast of Baja California 
through the weekend. Another cold front will push southward from 
California on Mon.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 

Fresh to occasionally strong winds are possible across the Gulf 
of Papagayo through Wed. Gentle to moderate monsoon winds will 
persist elsewhere across the offshore waters of Costa Rica, 
Panama, Colombia, and Ecuador. Light to gentle northerly winds 
will prevail across the Gulf of Panama this weekend. 

REMAINDER OF THE AREA...

High pressure NW of the cold front moving into Baja California 
will strengthen a surface ridge that dominates the waters north 
of 20N west of 125W. The pressure gradient between the building 
ridge and lower pressures associated with the ITCZ will support 
moderate to fresh trade winds through Sun. Large NW swell will 
gradually subside across the region west of 115W through Sun. A 
cold front will drop southward from California waters on Mon. 
High pressure building behind this front will strengthen trade 
winds in the western waters early next week.

$$
Mundell